Chetlee's solution worked for me. I am using Ableton Live. Turn off your wifi when you need to use helix. Then turn it back on to log in. Which is ridiculous.
I was having the same problem: technicolor spinning ball of death which mandated a force quit of Live every time I tried to add helix to the track, or to open helix in a track in which I had already placed it. Tried lots of stuff (re-installs, etc) with no luck. Turns out "turn off your wifi, load helix, turn back on wifi" was the solution.
Yes. Every time I close down my DAW and re-open, actually.
And I have PAID for the FULL VERSION (only USD 100 though, because I own the floor unit). Super annoying.
-The Douche